How To Proceed With Troubleshooting

WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the power window control system.
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally Service Precautions.

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

4. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Check if the LIN communication system is functioning normally.

Result





B -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.

5. CHECK FOR DTC*

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Recheck for DTCs.

Result





B -- GO TO DIAGNOSTIC TROUBLE CODE CHART Power Window Control System
A -- Continue to next step.

6. PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table Problem Symptoms Table.

Result





B -- GO TO STEP 8
A -- Continue to next step.

7. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check Operation Check.

(b) Terminals of ECU Pinout Values and Diagnostic Parameters.

(c) Data List / Active Test Scan Tool Testing and Procedures.

NEXT -- Continue to next step.

8. REPAIR OR REPLACE

Result





B -- GO TO STEP 10
A -- Continue to next step.

9. RESET POWER WINDOW REGULATOR

(a) If a power window regulator switch LED is blinking, initialize the power window regulator Initialization.

NEXT -- Continue to next step.

10. CONFIRMATION TEST

NEXT -- END